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#if defined __thumb__
#include "../../string/memcpy.c"
#else
#include <string.h>
#include "xscale.h"
void *
memcpy (void *dst0, const void *src0, size_t len)
{
int dummy;
asm volatile (
#ifndef __OPTIMIZE_SIZE__
"cmp %2, #0x3\n\
bls 3f\n\
and lr, %1, #0x3\n\
and r3, %0, #0x3\n\
cmp lr, r3\n\
bne 3f\n\
cmp lr, #0x0\n\
beq 2f\n\
b 1f\n\
0:\n\
ldrb r3, [%1], #1\n\
"
PRELOADSTR ("%1")
"\n\
tst %1, #0x3\n\
strb r3, [%0], #1\n\
beq 3f\n\
1:\n\
sub %2, %2, #1\n\
cmn %2, #1\n\
bne 0b\n\
2:\n\
cmp %2, #0xf\n\
bls 1f\n\
0:\n\
ldmia %1!, { r3, r4, r5, lr }\n\
"
PRELOADSTR ("%1")
"\n\
\n\
sub %2, %2, #16\n\
cmp %2, #0xf\n\
stmia %0!, { r3, r4, r5, lr }\n\
bhi 0b\n\
1:\n\
cmp %2, #0x7\n\
bls 1f\n\
0:\n\
ldmia %1!, { r3, r4 }\n\
"
PRELOADSTR ("%1")
"\n\
\n\
sub %2, %2, #8\n\
cmp %2, #0x7\n\
stmia %0!, { r3, r4 }\n\
bhi 0b\n\
1:\n\
cmp %2, #0x3\n\
bls 3f\n\
0:\n\
sub %2, %2, #4\n\
ldr r3, [%1], #4\n\
"
PRELOADSTR ("%1")
"\n\
\n\
cmp %2, #0x3\n\
str r3, [%0], #4\n\
bhi 0b\n\
"
#endif /* !__OPTIMIZE_SIZE__ */
"\n\
3:\n\
"
PRELOADSTR ("%1")
"\n\
sub %2, %2, #1\n\
cmn %2, #1\n\
beq 1f\n\
0:\n\
sub %2, %2, #1\n\
ldrb r3, [%1], #1\n\
"
PRELOADSTR ("%1")
"\n\
cmn %2, #1\n\
strb r3, [%0], #1\n\
bne 0b\n\
1:"
: "=&r" (dummy), "=&r" (src0), "=&r" (len)
: "0" (dst0), "1" (src0), "2" (len)
: "memory", "lr", "r3", "r4", "r5", "cc");
return dst0;
}
#endif
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